EM280 datasheet(8/18 Pages) CARLOGAVAZZI

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Carlo Gavazzi Controls S.p.A.

EM280

EM280 DS ENG

01/02/2018

Display

Type

LCD

Refresh time

1 s

Description

2 rows:

1st: 7 digits (7 mm)

2nd: 3 digits (7 mm)

Variable readout

Electrical variables: 3 digits, min: 0.00, max: 999

Energy meters: 7 digits, min: 0.0, max: 9 999 999

Digital outputs

Connection type

Detachable terminals

Maximum number of

outputs

Type

Opto-mosfet

Function

Pulse output. Each output transmits the consumption of a single three-phase load or the total

consumption of three single-phase loads.

Features

ON: 2.5 V ac/dc, 70 mA max

OFF: 40 V ac/dc max

Configuration param-

eters

Pulse weight (from 0.01 to 9.99 kWh per pulse)

Pulse duration (40 or 100 ms)

Configuration mode

Via keypad or UCS software

RS485 port

Protocol

Modbus RTU

Devices on the same

bus

Max 160 (1/5 unit load)

Communication type

Multidrop, bidirectional

Connection type

Detachable terminals, 2 wires, maximum distance 1000 m

Configuration param-

eters

Modbus address (from 1 to 247)

Baud rate (9.6 / 19.2 / 38.4 kbps)

Parity (None / Even)

Configuration mode

Via keypad or UCS software

Special functions

• Display of total loads connected in relation to energy consumption and power measurements (SUM function)

• Measurements independent from direction of current (Easy connection function)

• Resetting of active energy meters of single and total loads

• Resetting of maximum values within set active and apparent power interval

• Configuration of phase order: 1-2-3-1-2-3 or 3-2-1-3-2-1

• Password protected settings menu

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